passport.js

const passport = require("passport"),
  LocalStrategy = require("passport-local").Strategy,
  Models = require("./models.js"),
  passportJWT = require("passport-jwt");

const jwtSecret = "343rdfdfreerdggg5";

let Users = Models.Users,
  JWTStrategy = passportJWT.Strategy,
  ExtractJWT = passportJWT.ExtractJwt;

passport.use(
  new LocalStrategy(
    {
      usernameField: "userName",
      passwordField: "password",
    },
    (username, password, callback) => {
      console.log(`${username} ${password}`);
      Users.findOne({ userName: username }, (error, user) => {
        if (error) {
          console.log(error);
          return callback(error);
        }
        if (!user) {
          console.log("incorrect username");
          return callback(null, false, {
            message: "Incorrect username .",
          });
        }
        // Password wrong (use validatePassword to compare to hashed password stored in DB)
        if (!user.validatePassword(password)) {
          console.log("incorrent password");
          return callback(null, false, { message: "Incorrent password." });
        }
        console.log("finished");
        return callback(null, user);
      });
    }
  )
);
passport.use(
  new JWTStrategy(
    {
      jwtFromRequest: ExtractJWT.fromAuthHeaderAsBearerToken(),
      secretOrKey: jwtSecret,
    },
    (jwtPayload, callback) => {
      return Users.findById(jwtPayload._id)
        .then((user) => {
          return callback(null, user);
        })
        .catch((error) => {
          return callback(error);
        });
    }
  )
);